f
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@@ -6,6 +6,7 @@ import (
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"html/template"
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"net/http"
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"net/url"
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"time"
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"github.com/gin-gonic/gin"
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"go.uber.org/zap"
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@@ -27,6 +28,7 @@ type QYGLReportHandler struct {
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reportRepo api_repositories.ReportRepository
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pdfCacheManager *pdf.PDFCacheManager
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qyglPDFPregen *pdf.QYGLReportPDFPregen
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}
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// NewQYGLReportHandler 创建企业报告页面处理器
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@@ -35,12 +37,14 @@ func NewQYGLReportHandler(
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logger *zap.Logger,
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reportRepo api_repositories.ReportRepository,
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pdfCacheManager *pdf.PDFCacheManager,
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qyglPDFPregen *pdf.QYGLReportPDFPregen,
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) *QYGLReportHandler {
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return &QYGLReportHandler{
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apiRequestService: apiRequestService,
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logger: logger,
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reportRepo: reportRepo,
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pdfCacheManager: pdfCacheManager,
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qyglPDFPregen: qyglPDFPregen,
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}
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}
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@@ -141,7 +145,49 @@ func (h *QYGLReportHandler) GetQYGLReportPageByID(c *gin.Context) {
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})
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}
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// GetQYGLReportPDFByID 通过编号导出企业全景报告 PDF(基于 headless Chrome 渲染 HTML)
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// GetQYGLReportPDFStatusByID 查询企业报告 PDF 预生成状态(供前端轮询)
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// GET /reports/qygl/:id/pdf/status
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func (h *QYGLReportHandler) GetQYGLReportPDFStatusByID(c *gin.Context) {
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id := c.Param("id")
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if id == "" {
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c.JSON(http.StatusBadRequest, gin.H{"status": "none", "message": "报告编号不能为空"})
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return
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}
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if h.pdfCacheManager != nil {
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if b, hit, _, err := h.pdfCacheManager.GetByReportID(id); hit && err == nil && len(b) > 0 {
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c.JSON(http.StatusOK, gin.H{"status": string(pdf.QYGLReportPDFStatusReady), "message": ""})
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return
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}
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}
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if h.qyglPDFPregen == nil || !h.qyglPDFPregen.Enabled() {
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c.JSON(http.StatusOK, gin.H{"status": string(pdf.QYGLReportPDFStatusNone), "message": "未启用预生成,将在下载时现场生成"})
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return
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}
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st, msg := h.qyglPDFPregen.Status(id)
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c.JSON(http.StatusOK, gin.H{"status": string(st), "message": userFacingPDFStatusMessage(st, msg)})
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}
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func userFacingPDFStatusMessage(st pdf.QYGLReportPDFStatus, raw string) string {
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switch st {
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case pdf.QYGLReportPDFStatusPending:
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return "排队生成中"
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case pdf.QYGLReportPDFStatusGenerating:
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return "正在生成 PDF"
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case pdf.QYGLReportPDFStatusFailed:
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if raw != "" {
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return raw
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}
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return "预生成失败,下载时将重新生成"
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case pdf.QYGLReportPDFStatusReady:
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return ""
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case pdf.QYGLReportPDFStatusNone:
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return "尚未开始预生成"
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default:
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return ""
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}
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}
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// GetQYGLReportPDFByID 通过编号导出企业全景报告 PDF:优先读缓存;可短时等待预生成;否则 headless 现场生成并写入缓存
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// GET /reports/qygl/:id/pdf
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func (h *QYGLReportHandler) GetQYGLReportPDFByID(c *gin.Context) {
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id := c.Param("id")
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@@ -150,7 +196,6 @@ func (h *QYGLReportHandler) GetQYGLReportPDFByID(c *gin.Context) {
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return
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}
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// 可选:从数据库查一次,用于生成更友好的文件名
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var fileName = "企业全景报告.pdf"
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if h.reportRepo != nil {
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if entity, err := h.reportRepo.FindByReportID(c.Request.Context(), id); err == nil && entity != nil {
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@@ -160,46 +205,66 @@ func (h *QYGLReportHandler) GetQYGLReportPDFByID(c *gin.Context) {
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}
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}
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// 临时关闭企业全景报告 PDF 的读取缓存,强制每次都重新生成
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// 如果后续需要恢复缓存,可在此重新启用 pdfCacheManager.GetByReportID 的逻辑。
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// 根据当前请求推断访问协议(支持通过反向代理的 X-Forwarded-Proto)
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scheme := "http"
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if c.Request.TLS != nil {
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scheme = "https"
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} else if forwardedProto := c.Request.Header.Get("X-Forwarded-Proto"); forwardedProto != "" {
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scheme = forwardedProto
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var pdfBytes []byte
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if h.pdfCacheManager != nil {
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if b, hit, _, err := h.pdfCacheManager.GetByReportID(id); hit && err == nil && len(b) > 0 {
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pdfBytes = b
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}
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}
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// 构建用于 headless 浏览器访问的完整报告页面 URL
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reportURL := fmt.Sprintf("%s://%s/reports/qygl/%s", scheme, c.Request.Host, id)
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h.logger.Info("开始生成企业全景报告 PDF(headless Chrome)",
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zap.String("report_id", id),
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zap.String("url", reportURL),
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)
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pdfGen := pdf.NewHTMLPDFGenerator(h.logger)
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pdfBytes, err := pdfGen.GenerateFromURL(c.Request.Context(), reportURL)
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if err != nil {
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h.logger.Error("生成企业全景报告 PDF 失败", zap.String("report_id", id), zap.Error(err))
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c.String(http.StatusInternalServerError, "生成企业报告 PDF 失败,请稍后重试")
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return
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// 缓存未命中时:若正在预生成,短时等待(与前端轮询互补)
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if len(pdfBytes) == 0 && h.qyglPDFPregen != nil && h.qyglPDFPregen.Enabled() && h.pdfCacheManager != nil {
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deadline := time.Now().Add(90 * time.Second)
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for time.Now().Before(deadline) {
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st, _ := h.qyglPDFPregen.Status(id)
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if st == pdf.QYGLReportPDFStatusFailed {
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break
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}
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if b, hit, _, err := h.pdfCacheManager.GetByReportID(id); hit && err == nil && len(b) > 0 {
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pdfBytes = b
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break
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}
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time.Sleep(400 * time.Millisecond)
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}
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}
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if len(pdfBytes) == 0 {
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h.logger.Error("生成的企业全景报告 PDF 为空", zap.String("report_id", id))
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c.String(http.StatusInternalServerError, "生成的企业报告 PDF 为空,请稍后重试")
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return
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}
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scheme := "http"
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if c.Request.TLS != nil {
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scheme = "https"
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} else if forwardedProto := c.Request.Header.Get("X-Forwarded-Proto"); forwardedProto != "" {
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scheme = forwardedProto
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}
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reportURL := fmt.Sprintf("%s://%s/reports/qygl/%s", scheme, c.Request.Host, id)
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// 临时关闭企业全景报告 PDF 的写入缓存,只返回最新生成的 PDF。
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// 若后续需要重新启用缓存,可恢复对 pdfCacheManager.SetByReportID 的调用。
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h.logger.Info("现场生成企业全景报告 PDF(headless Chrome)",
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zap.String("report_id", id),
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zap.String("url", reportURL),
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)
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pdfGen := pdf.NewHTMLPDFGenerator(h.logger)
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var err error
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pdfBytes, err = pdfGen.GenerateFromURL(c.Request.Context(), reportURL)
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if err != nil {
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h.logger.Error("生成企业全景报告 PDF 失败", zap.String("report_id", id), zap.Error(err))
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c.String(http.StatusInternalServerError, "生成企业报告 PDF 失败,请稍后重试")
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return
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}
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if len(pdfBytes) == 0 {
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h.logger.Error("生成的企业全景报告 PDF 为空", zap.String("report_id", id))
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c.String(http.StatusInternalServerError, "生成的企业报告 PDF 为空,请稍后重试")
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return
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}
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if h.pdfCacheManager != nil {
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_ = h.pdfCacheManager.SetByReportID(id, pdfBytes)
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}
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if h.qyglPDFPregen != nil {
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h.qyglPDFPregen.MarkReadyAfterUpload(id)
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}
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}
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encodedFileName := url.QueryEscape(fileName)
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c.Header("Content-Type", "application/pdf")
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c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", encodedFileName))
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c.Data(http.StatusOK, "application/pdf", pdfBytes)
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}
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@@ -29,7 +29,9 @@ func (r *QYGLReportRoutes) Register(router *sharedhttp.GinRouter) {
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// 企业全景报告页面(通过编号查看)
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engine.GET("/reports/qygl/:id", r.handler.GetQYGLReportPageByID)
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// 企业全景报告 PDF 预生成状态(通过编号,供前端轮询)
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engine.GET("/reports/qygl/:id/pdf/status", r.handler.GetQYGLReportPDFStatusByID)
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// 企业全景报告 PDF 导出(通过编号)
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engine.GET("/reports/qygl/:id/pdf", r.handler.GetQYGLReportPDFByID)
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}
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